https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71649
--- Comment #2 from jack.saba at nasa dot gov <jack.saba at nasa dot gov> --- I tried it on a ubuntu machine and got the same error. Jack Saba jack.s...@nasa.gov Science, Systems, and Applications, Inc. Cryospheric Sciences Laboratory, Code 615 Bldg 33 Room A328 NASA/Goddard Space Flight Center Greenbelt Md 20771 301-614-5878 Fax: 301-614-5644 On 6/24/16 11:54, dominiq at lps dot ens.fr wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71649 > > Dominique d'Humieres <dominiq at lps dot ens.fr> changed: > > What |Removed |Added > ---------------------------------------------------------------------------- > Status|UNCONFIRMED |WAITING > Last reconfirmed| |2016-06-24 > CC| |fxcoudert at gcc dot gnu.org > Ever confirmed|0 |1 > > --- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > Confirmed from 4.8 up to trunk (7.0) without any option. The backtrace is > > * thread #1: tid = 0xfd5298, 0x00007fff9feb78b5 > libsystem_platform.dylib`_platform_strcmp + 181, queue = > 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0) > frame #0: 0x00007fff9feb78b5 libsystem_platform.dylib`_platform_strcmp + > 181 > libsystem_platform.dylib`_platform_strcmp: > -> 0x7fff9feb78b5 <+181>: movdqu (%rsi,%rcx), %xmm1 > 0x7fff9feb78ba <+186>: pcmpeqb %xmm1, %xmm0 > 0x7fff9feb78be <+190>: pcmpeqb %xmm2, %xmm1 > 0x7fff9feb78c2 <+194>: pandn %xmm0, %xmm1 > (lldb) bt > * thread #1: tid = 0xfd5298, 0x00007fff9feb78b5 > libsystem_platform.dylib`_platform_strcmp + 181, queue = > 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0) > * frame #0: 0x00007fff9feb78b5 libsystem_platform.dylib`_platform_strcmp + > 181 > frame #1: 0x000000010006a3e2 > f951`::create_intrinsic_function(name="compiler_options", id=27, > modname="iso_fortran_env", module=INTMOD_ISO_FORTRAN_ENV, > subroutine=<unavailable>, result_type=0x0000000000000000) + 82 at > module.c:6170 > frame #2: 0x000000010006cc45 f951`::use_iso_fortran_env_module() + 773 at > module.c:6752 > frame #3: 0x0000000100072910 > f951`::gfc_use_module(module=0x000000014270a050) + 6384 at module.c:6881 > frame #4: 0x00000001000744eb f951`gfc_use_modules() + 539 at module.c:7112 > frame #5: 0x000000010008231e f951`::use_modules() + 46 at parse.c:114 > frame #6: 0x0000000100086335 f951`::decode_statement() + 949 at > parse.c:332 > frame #7: 0x0000000100088174 f951`::next_statement() + 276 at parse.c:1080 > frame #8: 0x0000000100089dcd f951`::parse_spec(st=ST_USE) + 3325 at > parse.c:3637 > frame #9: 0x000000010008d0d7 f951`::parse_progunit(st=<unavailable>) + 39 > at parse.c:5420 > frame #10: 0x000000010008ed63 f951`gfc_parse_file() + 2003 at parse.c:5944 > frame #11: 0x00000001000d625b f951`::gfc_be_parse_file() + 59 at > f95-lang.c:201 > frame #12: 0x0000000100b67aba f951`::compile_file() + 58 at toplev.c:465 > frame #13: 0x0000000101051114 f951`toplev::main(int, char**) + 1544 at > toplev.c:1998 > frame #14: 0x0000000101050b0c f951`toplev::main(this=0x00007fff5fbff340, > argc=<unavailable>, argv=<unavailable>) + 732 > frame #15: 0x0000000101052979 f951`main(argc=2, argv=0x00007fff5fbff380) + > 41 at main.c:39 > frame #16: 0x00007fff9ea105ad libdyld.dylib`start + 1 > > (lldb) p *tmp_symtree > (gfc_symtree) $1 = { > priority = 1978153288 > left = 0x84048d49a4048d4b > right = 0x00000080c7848b41 > name = 0x5c415d5b08c48348 <no value available> > ambiguous = 1581342017 > n = { > sym = 0x6c266a358b00401f > uop = 0x6c266a358b00401f > common = 0x6c266a358b00401f > tb = 0x6c266a358b00401f > omp_udr = 0x6c266a358b00401f > } > } > (lldb) p tmp_symtree->n.sym->module > error: Couldn't apply expression side effects : Couldn't dematerialize a > result > variable: couldn't read its memory > > Could someone check that the problem is not darwin specific? >